Article posted: 3/17/2013 4:46 AM

Huge decrease of Monarch butterflies in Mexico

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A Monarch butterfly sits on a tree trunk at the Sierra Chincua Sanctuary in the mountains of Mexico's Michoacan state. The number of Monarch butterflies wintering in Mexico dropped 59 percent in 2013, falling to the lowest level since comparable record-keeping began 20 years ago, scientists reported.

Associated Press

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The number of monarch butterflies making it to their winter refuge in Mexico dropped 59 percent this year, falling to the lowest level since comparable record-keeping began 20 years ago, scientists have reported. It was the third straight year of declines for the orange-and-black butterflies that migrate from the United States and Canada to spend the winter sheltering in mountaintop fir forests in central Mexico.
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